Mutations

Mutations are extra abilities that are given to you at the end of a level if you have leveled up. To level up you need to get 60 Rads multiplied by your current level number, which means the amount of Rads required increases with the character's level (60, 120, 180, etc.). Each level up is signified by a white crown symbol, appearing above your character. Going over level 9 and essentially reaching level 10 (Level Ultra) allows you to choose one of the character-specific Ultra Mutations listed below the regular Mutations table.

Contents

A list of all the mutations in alphabetical order. At the end of a level you can choose between 4 randomly rolled mutations per level up. Currently the game allows players to reach level 10, which means a total of 9 mutations. (Or 10 mutations if you take the Crown of Destiny, 11 if you also picked Patience)

Euphoria

Extra Feet

Movement speed is increased.

Additionally makes you walk normally on all surfaces. That includes spider webs in Crystal Caves and ice in Frozen City.

Gamma Guts

Touching enemies makes them take 6 damage per hit animation, for as long as your character is in contact with them. You will take no contact damage from enemies that are instantly killed by Gamma Guts (have 12 or less health at the moment of impact, as it takes two frames for enemies to deal contact damage with Gamma Guts).

If an enemy is killed by Gamma Guts, your character will create an area of effect blast which deals 8 damage to all nearby enemies.

Can also be used as a last resort if you run out of ammo and don't have a melee weapon.

Hammerhead

Pushing against a wall allows your character to break through exactly 20 wall tiles to create instant cover, or ambush enemies. You can also break Fire Traps by walking into them.

The amount of tiles you can break resets back to 20 each time you enter a level ending portal.

Entering the Jungle secret area will remove Last Wish from your character's mutations. You will instantly choose a mutation that replaces it, the mutations will be the same as they were when you initially picked last wish, meaning last wish will not act as a re-roll when used this way. Last Wish will be put back into the pool of mutations you can choose from so it's possible to pick it again.

Long Arms

More melee range. Melee swings will appear further from the character and travel a longer distance. Enemies directly in front of your character will still get damaged even if the swing projectile isn't in contact with them.

Lucky Shot

11.76% of kills regenerate ammo. The ammo type is equally random.

It gives 32 bullets, 8 shells, 7 bolts, 6 explosives or 10 energy, which is equal to that of a Mini Ammo Chest. (the in-game text is bugged and shows less)

Open Mind

Extra Chests/Canisters can appear in different forms, depending on the conditions and chances listed on the Pickups page. Chests that appear only in Secret Areas can also spawn as extras in those areas.

If two Weapon Chests spawn on the same level and you leave both unopened, both will count towards spawning a Large Weapon Chest.

If two Radiation Canisters spawn on the same level and you leave both unopened, they will count as one Big Radiation Canister.

The double multiplier is added before the Crown of Haste effect. After taking the crown Mini Medkits will heal for 5 HP instead of the expected 6 HP. Stationary Medkits are unaffected by the crown and will heal for 8HP.

Sharp Teeth

Taking damage deals double the amount of HP you lost, to all enemies currently on the screen.

Normally all these weapons deal more damage up close. With this mutation their projectiles also deal that increased damage right after bouncing off walls (for two frames after bouncing, check the weapons page for the increased damage values).

Stress

Increases rate of fire in relation to the amount of missing health.

The fire-rate buff provided by Stress is inversely proportional to percentage remaining of max HP. It gives you up to 80% higher rate of fire as your health gets lower. (100% + 80% fire rate at 0 HP)

Even if you have 20 max health as Crystal the highest buff you can have is 76% on 1 HP.

The only character that can reach 80% and not die is Chicken without her head.

This affects the swing rate of melee weapons as well.

Strong Spirit

Strong Spirit can activate and save your life once per area. It recharges when you leave the level that it activated in and heal back to full health. If the mutation is charged your character will have a halo above its head.

Having 1 max health as Chicken or Melting will limit this mutation to save you from death only once. It can't be recharged afterwards.

Going over level 9 and essentially reaching level 10 (Level Ultra) allows you to choose one of the character-specific Ultra Mutations. On the experience bar the number 10 is replaced by a crown icon, indicating that your character reached its full potential. This adds 1 extra mutation to the max that your character can have. That's a total of 9 mutations, 10 with Crown of Destiny, 11 if you also picked Patience and 14 if you play as Melting with his second Ultra Mutation.

Fortress

Juggernaut

Projectile Style

While using Telekinesis, your projectiles will be frozen in a stationary position on top of Eyes, in the direction of where you shot your gun. Upon deactivating Telekinesis, all projectiles will continue to travel their initial destination and behave as normal.

Detachment

Trapper

Killer

Each enemy killed while snared will spawn deadly Saplings, which fly around and will home towards other enemies dealing 5 impact damage and afterwards causing 3 closely packed Blood Explosions. Each Sapling has 10 HP and can explode upon taking 10 or more damage.

Each blood explosion deals 4-12 damage and destroys any projectiles in the blast radius. Blood explosions don't destroy walls and do no damage to the player.

Back 2 Bizniz

Pop Pop will fire off 50% extra trigger pulls that won't consume ammo and won't affect the reload time. Which means a total of 3 trigger pulls with a cost of 2 and 160% of the weapon's regular reload time.

With Throne Butt, Pop Pop will fire a total of 6 trigger pulls with a cost of 4 and 240% reload time.

Riot

Stalker

Enemies that normally drop rads and Rad Canisters explode into radiation beam pellets upon death/when destroyed. The projectiles shoot out in all directions and otherwise act like parts of Horror's radiation beam dealing 1 damage each. Exploding doesn't reduce the amount of rads they will drop.

The amount of beam pellets each enemy/Rad Canister explodes into is 60% of the amount of rads it drops. That includes radiation added from other Horror's beam pellets hitting the enemy before it dies.

Anomaly

Level ending portals appear slightly before you have killed all enemies in that level. The portal opens when their combined health is equal or below 140. All remaining enemies are killed in the process.

Meltdown

Doubles your Radiation capacity, increasing the amount of rads Horror can use for its active ability and Ultra Weapons.

Super Blast Armor

Redemption

Turns Skeleton back into Melting. Every mutation you picked while playing as Skeleton will be removed. You'll be able to pick nine new ones (standard eight and one extra) and one of Melting's ultra mutations instead.

Melting will have base 2 HP as opposed to Skeleton's 4 HP.

Damnation

Firing a weapon with Blood Gamble will reduce that weapon's reload time by 80%. This only affects the current reload; it is not a permanent reduction.

Going over level 9 when playing in Co-op and essentially reaching level 10 (Level Ultra) allows you to choose an Ultra Mutation unique to Co-op which will affect both characters. You will pick it instead of the character-specific Ultra Mutations listed above, which are unavailable in Co-op.

Mutation

Description

Blood Bond

Health pickups are shared. Picking up a Mini Medkit will restore 2 HP of both players simultaneously.

Gun Bond

Ammo pickups are shared. Picking up a Mini Ammo Chest/Cursed Mini Ammo Chest will give its full amount of ammo to both players simultaneously.